The opinions expressed in this blog are my own and do not represent those of my current employer

Microsoft did nice work related to callback mechanism, to avoid nasty patching across kernel, and support monitoring in clean way. Currently we can use, among others, for example callbacks on loading new image, process, thread, opening & duplicating handles, dropping files etc. For monitoring network communication you can attach to some device drivers, which is cleaner than hooking, but still does not cover as much as i want to. And there comes ALPC, because even resolving host comes through, and when you are able to recognize it ..